Home / 78,255.35-107,993.86-48,025.54

Finding the Fourth Proportional to 78,255.35, 107,993.86 and 48,025.54

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Solution

The fourth proportional to 78,255.35, 107,993.86 and 48,025.54 is: 66,276.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,255.35 : 107,993.86 = 48,025.54 : x
  2. Step 2: Convert to fraction form
    78,255.35/107,993.86 = 48,025.54/x
  3. Step 3: Cross multiply
    78,255.35x = 107,993.86 × 48,025.54
  4. Step 4: Simplify right side
    78,255.35x = 5,186,463,458.11
  5. Step 5: Solve for x
    x = 5,186,463,458.11/78,255.35
  6. Step 6: Final answer
    x = 66,276.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.